port to js

.gitignore

@@ -107,3 +107,5 @@ credentials.json
 
 .vercel
 env
+hkd_one
+hkd_one~

calculate.js

@@ -1,23 +1,60 @@
 const axios = require('axios')
+const fs = require('fs').promises;
 
 module.exports = {
     bfx: async function() {
         const btcDataURL = "https://api-pub.bitfinex.com/v2/ticker/tBTCUSD"
         const response = await axios.get(btcDataURL)
         const data = response.data
-        console.log(data[6])
+            //console.log(data[6])
 
         const satDenominator = 100000000
         const hkdrate = 0.1287
         btcLastPrice = data[6]
         const sathkd = Math.round((1 / btcLastPrice) * satDenominator * hkdrate)
-        console.log("bitfinex last price: ", btcLastPrice, "current satHKD: ", sathkd)
+            //console.log("bitfinex last price: ", btcLastPrice, "current satHKD: ", sathkd)
-        return data
+        return sathkd
     },
 
-    get10yr: function(lang) {
+    get10yr: async function(lang) {
         console.log("get10yr language: ", lang)
-        return true
+        let data = "testing"
+        try {
+            const content = await fs.readFile('./public/static/hkd_historical')
+            const historical = JSON.parse(content)
+                //console.log(historical[0])
+            hist_entries = []
+                // get all the years you need from 1 - 10
+            let datelist = []
+            for (let i = 1; i < 11; i++) {
+                const y = new Date(new Date().setFullYear(new Date().getFullYear() - i)).toISOString().slice(0, 10)
+                datelist.push(y)
+            }
+            for (let j = 0; j < historical.length; j++) {
+                const hdate = historical[j]['date']
+                if (datelist.includes(hdate)) {
+                    //console.log('hit', hdate, historical[j])
+                    hist_entries.push(historical[j])
+                }
+            }
+            //  console.log(hist_entries)
+
+            let final_list = []
+            let today_sats = await this.bfx()
+                //            console.log("today sats", today_sats)
+            for (var v = 0; v < hist_entries.length; v++) {
+                year = new Date(hist_entries[v]['date']).getFullYear();
+                rawsat = hist_entries[v]['sathkd_rate']
+                percentage = (-100 * ((rawsat - today_sats) / rawsat)).toFixed(3)
+                final_list.push({ "year": year, "sats": rawsat, "percentage": percentage });
+            }
+            //            console.log(final_list.reverse())
+
+            return true
+                //return final_list.reverse()
+        } catch (error) {
+            console.error("Error trying to read file ", error)
+        }
     }
 
 }

index.js

@@ -16,13 +16,8 @@ const zhcnjson = require('./locales/zh-cn.json');
 const zhhkjson = require('./locales/zh-hk.json');
 const enjson = require('./locales/en.json');
 
-
+const data = calculate.get10yr('en').then(value => { console.log(value) })
-//calculate.bfx()
+    //console.log(data)
-//calculate.get10yr('en')
-
-//const product = require("./api/product");
-//app.use("/api/product", product);
-
 
 const pydata = [{ 'year': '1 year ago', 'sats': '1,199 sats', 'percent': '-79.149%' },
     { 'year': '2 years ago', 'sats': '1,582 sats', 'percent': '-84.197%' },
@@ -62,8 +57,6 @@ app.use(logger('dev'));
 // will look for "./public/js/app.js".
 
 app.use(express.static(path.join(__dirname, 'public')));
-//app.use(express.static(path.join(__dirname, 'views')));
-//app.use(express.static(path.join(__dirname, 'views/layouts')));
 
 
 // if you wanted to "prefix" you may use